package com.example.nophase.utils;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.net.Uri;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.ProgressBar;
import androidx.core.content.FileProvider;
import com.example.nophase.BuildConfig;
import com.example.nophase.R;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;


public class UpdateManager {
    private Activity mContext;
//    private static String apkName = "TestNoPhase.apk";
    private static String apkName = "NoPhase.apk";
    //提示语
    private String updateMsg = "有最新的软件包，请更新系统";

    //返回的安装包url
    private String apkUrl = "https://crm.zhengshaonian.com/"+apkName;

    private Dialog noticeDialog;

    private Dialog downloadDialog;
    /* 下载包安装路径 */
    private static final String savePath =
            SDCardUtils.getSDCardPath();

    private static final String saveFileName = savePath + apkName;

    /* 进度条与通知ui刷新的handler和msg常量 */
    private ProgressBar mProgress;


    private static final int DOWN_UPDATE = 1;

    private static final int DOWN_OVER = 2;

    private int progress;

    private Thread downLoadThread;

    private boolean interceptFlag = false;

    private Handler mHandler = new Handler() {
        public void handleMessage(Message msg) {
            switch (msg.what) {
                case DOWN_UPDATE:
                    mProgress.setProgress(progress);
                    break;
                case DOWN_OVER:

                    installApk();
                    break;
                default:
                    break;
            }
        }

        ;
    };

    public UpdateManager(Activity context) {
        this.mContext = context;
    }

    //外部接口让主Activity调用
    public void checkUpdateInfo() {
//        String URLRoot = HttpBaseCls.GetURLRoot(mContext);
//        this.apkUrl = URLRoot + url;
        showNoticeDialog();
    }

    private void showNoticeDialog() {
        AlertDialog.Builder builder = new AlertDialog.Builder(mContext);
        builder.setTitle("软件版本更新");
        builder.setMessage(updateMsg);
        builder.setCancelable(false);
        builder.setPositiveButton("下载", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                dialog.dismiss();
                showDownloadDialog();
            }
        });
//        builder.setNegativeButton("以后再说", new OnClickListener() {
//            @Override
//            public void onClick(DialogInterface dialog, int which) {
//                dialog.dismiss();
//            }
//        });
        noticeDialog = builder.create();
        noticeDialog.show();
    }

    private void showDownloadDialog() {
        AlertDialog.Builder builder = new AlertDialog.Builder(mContext);
        builder.setTitle("软件版本更新");
        builder.setCancelable(false);
        final LayoutInflater inflater = LayoutInflater.from(mContext);
        View v = inflater.inflate(R.layout.progress, null);
        mProgress = (ProgressBar) v.findViewById(R.id.progress);

        builder.setView(v);
//        builder.setNegativeButton("取消", new OnClickListener() {
//            @Override
//            public void onClick(DialogInterface dialog, int which) {
//                dialog.dismiss();
//                interceptFlag = true;
//            }
//        });
        downloadDialog = builder.create();
        downloadDialog.show();

        downloadApk();
    }

    private Runnable mdownApkRunnable = new Runnable() {
        @Override
        public void run() {
            try {
                URL url = new URL(apkUrl);

                HttpURLConnection conn = (HttpURLConnection) url.openConnection();
                conn.connect();
                int length = conn.getContentLength();
                InputStream is = conn.getInputStream();

                File file = new File(savePath);
                if (!file.exists()) {
                    file.mkdir();
                }
                String apkFile = saveFileName;
                File ApkFile = new File(apkFile);
                if (!file.exists()) {
                    file.createNewFile();
                }

                FileOutputStream fos = new FileOutputStream(ApkFile);

                int count = 0;
                byte buf[] = new byte[1024];

                do {
                    int numread = is.read(buf);
                    count += numread;
                    progress = (int) (((float) count / length) * 100);
                    //更新进度
                    mHandler.sendEmptyMessage(DOWN_UPDATE);
                    if (numread <= 0) {
                        //下载完成通知安装
                        mHandler.sendEmptyMessage(DOWN_OVER);
                        break;
                    }
                    fos.write(buf, 0, numread);
                } while (!interceptFlag);//点击取消就停止下载.

                fos.close();
                is.close();
            } catch (MalformedURLException e) {
                Log.e("UpdateManager", e.getMessage());
            } catch (IOException e) {
                Log.e("UpdateManager", e.getMessage());
            }

        }
    };

    /**
     * 下载apk
     *
     * @param
     */

    private void downloadApk() {
        downLoadThread = new Thread(mdownApkRunnable);
        downLoadThread.start();
    }

    /**
     * 安装apk
     *
     * @param
     */
    private void installApk() {
        File apkfile = new File(savePath, apkName);
        if (!apkfile.exists()) {
            return;
        }
        Intent intent = new Intent(Intent.ACTION_VIEW);
        Uri fileUri;
        if (android.os.Build.VERSION.SDK_INT >= 24) {

//            fileUri = FileProvider.getUriForFile(mContext, mContext.getPackageName(), apkfile);
//            intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);

            intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
            Uri contentUri = FileProvider.getUriForFile(mContext, BuildConfig.APPLICATION_ID + ".fileProvider", apkfile);
            intent.setDataAndType(contentUri, "application/vnd.android.package-archive");
        } else {
//            fileUri = Uri.fromFile(apkfile);
            intent.setDataAndType(Uri.fromFile(apkfile), "application/vnd.android.package-archive");
            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        }
        // intent.setDataAndType(fileUri, "application/vnd.android.package-archive");
        mContext.startActivity(intent);
        mContext.finish();

    }
}